| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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301,000 pcs
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301000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
190,000 pcs
|
190000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The STMicroelectronics LD2981CU33TR is a linear voltage regulator designed for applications requiring a stable 3.3V power supply. It delivers a continuous output current of 150µA, making it suitable for low-power electronic circuits. The device operates with an input voltage range up to 16V and features a low dropout voltage of 0.375V at 100mA.
Key electrical characteristics include a PSRR of 63dB at 1kHz, indicating good power supply ripple rejection. Protection features such as over current and over temperature are integrated to enhance reliability. The regulator is housed in a TO-243AA package, with the supplier device package specified as SOT-89-3. It is designed for surface mount applications.
With an operating temperature range from -40°C to 125°C, the LD2981CU33TR is suitable for a variety of environmental conditions. Its fixed positive output configuration and robust protection mechanisms make it a reliable choice for embedded systems and portable electronics where efficient and stable voltage regulation is critical.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.28 | $0.28 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The fixed output voltage is 3.3V.
The input voltage rating is 16V.
The listed output current is 150µA.
The maximum dropout voltage is 0.375V at 100mA.
The operating temperature range is -40°C to 125°C.
It is offered in TO-243AA, also known as SOT-89-3.
It includes overcurrent and overtemperature protection.